Quantitative Estimation of Coupling Phenomenon between Reduction and Gasification on the Facing Pair of Iron Oxide and Graphite

スポンサーリンク

概要

• 論文の詳細を見る

• In previous study, the analysis of simultaneous reaction between the reduction reaction and the gasification reaction in a facing pair was performed. The definition of the coupling phenomenon was proposed. It was found that the starting temperature of gasification decreased from 900 to 600°C in the facing pair under CO2 atmosphere.In present study, the quantitative estimation of coupling phenomenon between reduction and gasification was carried out with modified experimental setup, in which all reaction gas (Ar–30%CO2) could be passed through the space of facing pair of iron oxide (hematite) and graphite. Reduction reaction was promoted by the gasification reaction occurring in the opposite surface and the extent of reduction reaction was obtained as a function of the distance.In the shortest distance, 0.5 mm, the CO2 flow rate increased in the outlet gas, which meant that the reduction reaction was promoted and CO2 gas reproduced during experiment.The ratio of RDR (reduction rate) to RCS (gasification rate) increased until 0.5 mm from 1.5 mm, which was the distance of facing pair of hematite and graphite.

• 社団法人 日本鉄鋼協会の論文
• 2006-11-15

著者

• Kashiwaya Yoshiaki

  Graduate School of Engineering, Hokkaido University

• Ishii K

  Div. Of Materials Sci. Graduate School Of Engineering Hokkaido Univ.

• Ishii Kuniyoshi

  Hokkaido University

• Ishii K

  Division Of Materials Science And Engineering Graduate School Of Engineering Hokkaido University

• Kashiwaya Yoshiaki

  Graduate School Of Engineering Hokkaido University

• Kashiwaya Yoshiaki

  Faculty Of Engineering Hokkaido University

• Ishii K

  Hokkaido University

• KANBE Motomichi

  Graduate School of Engineering, Hokkaido University

• Kashiwaya Yoshiaki

  Div. Of Materials Sci. Graduate School Of Engineering Hokkaido Univ.

• Kanbe Motomichi

  Graduate School Of Engineering Hokkaido University

• Kashiwaya Yoshiaki

  Graduate School Of Energy Science And Technology Kyoto University

関連論文

• Latent Heat of Amorphous Slags and Their Utilization as a High Temperature PCM
• Mechanism of the Formation of Slag Particles by the Rotary Cylinder Atomization
• Development of a Rotary Cylinder Atomizing Method of Slag for the Production of Amorphous Slag Particles
• Crystallization Behaviors Concerned with TTT and CCT Diagrams of Blast Furnace Slag Using Hot Thermocouple Technique
• The Effect of Grain Boundaries on the Surface Rearrangement during Wustite Reduction within its Range of Existence
• Measuring Strains for Hematite Phase in Sinter by Electron Backscattering Diffraction Method
• The Effect of Grain Boundaries on Iron Nucleation during Wustite Reduction Process
• Rupture Phenomena of Molten Alkali Silicate Thin Films
• The Surface Structure Correlation with the Wustite Surface Rearrangement
• The Effect of Grain Boundary on the Wustite Reduction Process
• The Surface Structure Correlations with the Iron Nucleation in the Wustite Reduction
• The Surface Structure Correlations with Wustite Reduction Mechanism
• An Investigation of the Crystallization of a Continuous Casting Mold Slag Using the Single Hot Thermocouple Technique
• Development of Double and Single Hot Thermocouple Technique for in situ Observation and Measurement of Mold Slag Crystallization
• Analysis of the Transition State of the Carbon and Iron Oxide Mixture Activated by Mechanical Milling
• Phosphorous Partition in Dephosphorization Slag Occurring with Crystallization at Initial Stage of Solidification
• Crystallization Behaviors Concerned with TTT and CCT Diagrams of Blast Furnace Slag Using Hot Thermocouple Technique
• Quantitative Estimation of Coupling Phenomenon between Reduction and Gasification on the Facing Pair of Iron Oxide and Graphite
• Characteristics of Nano-reactor and Phenomena during Mechanical Milling of Hematite-Graphite Mixture
• Gas Evolution during Mechanical Milling of Hematite-Graphite Mixture
• Intensive Improvement of Reduction Rate of Hematite-Graphite Mixture by Mechanical Milling
• Reaction Behavior of Facing Pair Between Hematite and Graphite: A Coupling Phenomenon of Reduction and Gasification
• The Preferable Growth Direction of Iron Nuclei on Wustite Surface during Reduction
• In Situ Observation of Reduction Behavior of Hematite with Solid Carbon and Crystallographic Orientation between Hematite and Magnetite
• Simulation Test for Crystallization of Inclusions in Semi-killed Steels during Heat Treatment Prior to Hot Rolling
• Carburization of Iron by Ar-CO-H_2 at 1523K
• The Effect of the Liquid Fe-C Phase on the Kinetics in the Carburization of Iron by CO at 1523K
• The kinetics of carburization of pure iron in CO-Ar mixtures at 1523K
• Catalytic Effect of Slags on the Formation of Biodiesel Fuel
• In Situ Observation of Diamond Gasification and the Crystallographic Relationship of Graphite Formed on the Surface of Diamond
• Kinetic Analysis of the Gasification of Diamond
• Latent Heat of Amorphous Slags and Their Utilization as a High Temperature PCM
• Effect of Oxides and Carbonate on the Reaction of Hematite and Graphite Mixture Obtained by the Mechanical Milling
• Mechanism of the Formation of Slag Particles by the Rotary Cylinder Atomization
• Development of a Rotary Cylinder Atomizing Method of Slag for the Production of Amorphous Slag Particles
• Thermodynamic Analysis on the Dust Generation from EAF for the Recycling of Dust
• Binding Energy of Carbon Implanted into Hematite and in situ Observation of Reaction Behavior during Heating Up Experiment
• Effect of Sulfur on the TTT Diagram of CaO–Al2O3 Slag at Eutectic Composition
• Atmosphere Controlled Hot Thermocouple Method and Crystallization Phenomenon of CaO–Al2O3 Eutectic Slag
• Kinetic Analysis of the Decomposition Reaction of CH4 Injecting into Molten Slag
• Thermodynamics of Impurities in Pure Iron Obtained by Hydrogen Reduction
• Simulation of Blast Furnace Operation with Intensive Hydrogen Injection
• Thermodynamics of Impurities in Pure Iron Obtained by Hydrogen Reduction
• Preface to the Special Issue on "Green Energy Ironmaking and Steelmaking –Production of Green Energy and Its Use in Ironmaking and Steelmaking–"

もっと見る 閉じる

スポンサーリンク